* [PATCH] (11/17) econet -- size_t for send/recvmsg
@ 2004-01-09 22:03 Stephen Hemminger
0 siblings, 0 replies; only message in thread
From: Stephen Hemminger @ 2004-01-09 22:03 UTC (permalink / raw)
To: David S. Miller; +Cc: netdev
Convert econet over to unsigned length for send/recv msg.
Add a bounds check based on device mtu - header.
diff -Nru a/net/econet/af_econet.c b/net/econet/af_econet.c
--- a/net/econet/af_econet.c Mon Dec 8 16:20:01 2003
+++ b/net/econet/af_econet.c Mon Dec 8 16:20:01 2003
@@ -113,11 +113,12 @@
*/
static int econet_recvmsg(struct kiocb *iocb, struct socket *sock,
- struct msghdr *msg, int len, int flags)
+ struct msghdr *msg, size_t len, int flags)
{
struct sock *sk = sock->sk;
struct sk_buff *skb;
- int copied, err;
+ size_t copied;
+ int err;
msg->msg_namelen = sizeof(struct sockaddr_ec);
@@ -246,7 +247,7 @@
*/
static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
- struct msghdr *msg, int len)
+ struct msghdr *msg, size_t len)
{
struct sock *sk = sock->sk;
struct sockaddr_ec *saddr=(struct sockaddr_ec *)msg->msg_name;
@@ -307,6 +308,9 @@
if (dev == NULL)
return -ENETDOWN;
}
+
+ if (len + 15 > dev->mtu)
+ return -EMSGSIZE;
if (dev->type == ARPHRD_ECONET)
{
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2004-01-09 22:03 [PATCH] (11/17) econet -- size_t for send/recvmsg Stephen Hemminger
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